Skip to Navigation Skip to Content Read about Accessibility on the Telecommunications Ombudsman website

Making a complaint

Before contacting us, please complete this checklist to see if the TIO can help you.

  • Are you a residential consumer or small business?
  • Is your complaint about your landline telephone, mobile or internet service, or damage to your property by a service provider?
  • Have you already tried to contact your service provider to solve your complaint with them?
  • Have you been unable to get through to them? Or are you and your provider unable to agree? Or are you unhappy with the solution offered by your service provider?
  • Are you the account holder or have you been authorised to deal with this matter?
  • Is your issue less than 1 or 2 years old?

If the answers to these questions are yes, we may be able to help.

To make or update a complaint you can:


Excess data usage

Brenda - Case Study

The owner of a small pharmacy contacted us after getting billed more than $8,000 for going over her internet usage limit.

Next step?

  • make an online complaint
  • 1800 062 058
  • WritePO Box 276
    Collins Street West Vic 8007
  • VisitLevel 3, 595 Collins Street
    Melbourne
  • TTY1800 675 692
    National Relay Service133 677 or www.relayservice.com.au
  • Fax our consumer complaint form to 1800 630 614